ESI 09-6

Description:

This standard covers multicore and multipair cables with PVC or Polythene insulation. The conductors are 1/0.8mm PCW, (Issue 6), 7/0.67mm PCW (Issues 5 or 6), or 1/0.9mm TCW (Issue 5)

PVC insulated multicore cables are intended for use in power stations and substations for remote operation of electrical switchgear.

Polythene insulated multipair cables are intended to provide circuits for feeder protection and for speech and data transmission.

PVC insulated multipair cables are intended for use with control, indication and alarm equipment for switchgear and similar systems.

Issue 6 substitutes 1/0.8mm conductor for 1/0.9mm conductor for rationalization purposes.

Specifications:

PVC Multicore Cables
Conductors: 2.5mm² (7/0.67mm) PCW Class 2 to EN 60228
Insulation: PVC
Core identity: White with Black numbers

No. of Cores 2 3 4 7 12 19 27 37
Insulation r/t (mm) 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7
Bedding r/t (mm) 0.8 0.8 0.8 0.8 0.8 1 1 1
Dia over bedding (mm) 8.5 9.1 9.9 11.9 15.9 19.1 23.1 26
Armour size (mm) 0.9 0.9 0.9 1.25 1.25 1.6 1.6 2
Sheath r/t (mm) 1.4 1.4 1.4 1.5 1.6 1.7 1.8 1.9
Overall Diam (mm) 13.1 13.6 14.5 17.4 21.6 25.7 29.9 33.8
Cable Weight (Kg/Km) 46 70 93 163 279 441 627 860

PVC Multipair (Unarmoured) Light Current Control Cables
Conductors: 0.5mm² (1/0.8mm) PCW Class 1 to EN 60228
Insulation: PVC
Pair identity: See Table 1

No. of Pairs 2* (2*) 5 (5) 10 (10) 15 (15) 20 (20)
Insulation r/t (mm) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3)
Dia under sheath (mm) 3.5 (3.6) 6.5 (6.6) 9.6 (9.7) 11.3 (11.4) 12.8 (12.9)
Sheath r/t (mm) 0.8 (0.8) 1 (1) 1.1 (1.1) 1.1 (1.1) 1.2 (1.2)
Overall Diam (mm) 5.1 (5.2) 8.5 (8.6) 11.8 (11.9) 13.5 (13.6) 15.2 (15.3)
Cable Weight (Kg/Km) 39 (45) 106 (114) 183 (192) 253 (263) 330 (340)

* 2 Pair laid up as quad
(Overall screen)

PVC Multipair (Armoured) Light Current Control Cables
Conductors: 0.5mm² (1/0.8mm) PCW Class 1 to EN 60228
Insulation: PVC
Pair identity: See Table 1

No. of Pairs 2* (2*) 5 (5) 10 (10) 15 (15) 20 (20)
Insulation r/t (mm) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3)
Dia under bedding (mm) 3.5 (3.6) 6.5 (6.6) 9.6 (9.7) 11.3 (11.4) 12.8 (12.9)
Bedding r/t (mm) 0.8 (0.8) 1 (1) 1.1 (1.1) 1.1 (1.1) 1.2 (1.2)
Armour size (mm) 0.9 (0.9) 0.9 (0.9) 1.25 (1.25) 1.25 (1.25) 1.25 (1.25)
Sheath r/t (mm) 1.3 (1.3) 1.4 (1.4) 1.5 (1.5) 1.6 (1.6) 1.6 (1.6)
Overall Diam (mm) 9.5 (9.6) 13.1 (13.2) 17.3 (17.4) 19.4 (19.5) 20.9 (21)
Cable Weight (Kg/Km) 188 (200) 345 (360) 605 (620) 755 (766) 876 (888)

* 2 Pair laid up as quad
(Overall screen dimensions)

Polythene Multipair (Armoured) Cables (where the induced voltage does not exceed 5kv)
Conductors: 0.5mm² (1/0.8mm) PCW Class 1 to EN 60228
Insulation: PE
Pair identity:

No. of Pairs 4 7 19 37
Insulation r/t (mm) 0.5 0.5 0.5 0.5
Dia under bedding (mm) 7.4 9.25 15.35 21.47
Bedding r/t (mm) 0.8 0.8 1 1
Armour size (mm) 0.9 0.9 1.25 1.6
Sheath r/t (mm) 1.4 1.5 1.7 1.9
Overall Diam (mm) 13.6 15.65 19.85 30.5
Cable Weight (Kg/Km) 357 452 995 1715

PVC Multipair (Unarmoured) Light Current Control Cables
Conductors: 1/0.9mm TCW Class 1 to EN 60228
Insulation: PVC
Pair identity: See Table 3

No. of Pairs 2* (2*) 5 (5) 10 (10) 15 (15) 20 (20) 30 (30)
Insulation r/t (mm) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3  (0.3)
Dia under sheath (mm) 3.7 (3.8) 6.95 (7.05) 10.25 (10.35) 12.05 (12.15) 13.7 (13.8) 17.9 (18)
Sheath r/t (mm) 0.8 (0.8) 1 (1) 1.1 (1.1) 1.2 (1.2) 1.2 (1.2) 1.4 (1.4)
Overall Diam (mm) 5.3 (5.4) 8.95 (9.05) 11.8 (12.6) 14.45 (14.55) 16.1 (16.2) 20.7 (20.8)
Cable Weight (Kg/Km) 43 (51) 123 (133) 183 (224) 305 (320) 390 (405) 688 (702)

* 2 Pair laid up as quad
(Overall screen dimensions)

PVC Multipair (Armoured) Light Current Control Cables
Conductors: 1/0.9mm TCW Class 1 to EN 60228
Insulation: PVC
Pair identity: See Table 3

No. of Pairs 2* (2*) 5 (5) 10 (10) 15 (15) 20 (20) 30 (30)
Insulation r/t (mm) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3 (0.3) 0.3  (0.3)
Dia under bedding (mm) 5.3 (3.8) 6.95 (7.05) 10.25 (10.35) 12.05 (12.15) 13.7 (13.8) 17.9  (18.0)
Bedding r/t (mm) 0.8 (0.8) 1 (1) 1.1 (1.1) 1.1 (1.2) 1.2 (1.2) 1.4  (1.4)
Armour size (mm) 0.9 (0.9) 0.9 (0.9) 1.25 (1.25) 1.25 (1.25) 1.25 (1.25) 1.6  (1.6)
Sheath r/t (mm) 1.3 (1.3) 1.4 (1.4) 1.5 (1.5) 1.6 (1.6) 1.6 (1.6) 1.8  (1.8)
Overall Diam (mm) 9.7 (9.8) 13.55 (13.65) 17.95 (18.05) 20.15 (20.25) 21.8 (21.9) 27.5  (27.69)
Cable Weight (Kg/Km) 200 (210) 375 (385) 662 (675) 826 (840) 965 (976) 1595  (1610)

* 2 Pair laid up as quad
(Overall screen dimensions)

Polythene Multipair (Armoured) Cables (where the induced voltage does not exceed 5kv)
Conductors: 1/0.9mm TCW Class 1 to EN 60228
Insulation: PE
Pair identity: See Table 2

No. of Pairs 4 7 19 37
Insulation r/t (mm) 0.5 0.5 0.5 0.5
Dia under bedding (mm) 7.8 9.75 16.2 22.65
Bedding r/t (mm) 0.8 0.8 1 1
Armour size (mm) 0.9 0.9 1.6 2
Sheath r/t (mm) 1.4 1.5 1.7 1.9
Overall Diam (mm) 14 16.15 24.8 32.46
Cable Weight (Kg/Km) 380 488 1221 2086

TABLE 1
2 pair cables are cabled in a quad formation as White, Red, Blue, Orange in a clockwise rotation.

Pair number A wire B wire Pair number A wire B wire
1 White Blue 11 Black Blue
2 White Orange 12 Black Orange
3 White Green 13 Black Green
4 White Brown 14 Black Brown
5 White Grey 15 Black Grey
6 Red Blue 16 Yellow Blue
7 Red Orange 17 Yellow Orange
8 Red Green 18 Yellow Green
9 Red Brown 19 Yellow Brown
10 Red Grey 20 Yellow Grey

TABLE 2

4 Pair     7 Pair     19 Pair     37 Pair    
Pair A wire B wire Pair A wire B wire Pair A wire B wire Pair A wire B wire
1 Black Violet 1 Red Yellow Pairs 1-7 as 7 pair Pairs 1-19 as 19 pair
2 Red Yellow 2 Black Violet 8 Black Violet Pair 20 Black Violet
3 Green Brown 3* Orange Grey Odd pairs Red Yellow Odd pairs Red Yellow
4 Blue White 4 Green Brown Even pairs Green Brown Even pairs Green Brown
5* Orange Blue Final pair Blue White Final pair Blue White
6 Green Brown
7* Orange White

TABLE 3

Pair number A wire B wire Pair number A wire B wire
1 Black Blue 16 Green Brown
2 Black Orange 17 Green Grey
3 Black Green 18 Brown White
4 Black Brown 19 Brown Grey
5 Blue Grey 20 Grey White
6 Blue White 21 Black White
7 Blue Orange 22 Black Red
8 Blue Green 23 Black Yellow
9 Blue Brown 24 Black Violet
10 Blue Grey 25 White Red
11 Orange White 26 White Yellow
12 Orange Green 27 White Violet
13 Orange Brown 28 Blue Red
14 Orange Grey 29 Blue Yellow
15 Green White 30 Blue Violet

All dimensions are nominal unless otherwise specified
Bunched conductor constructions are nominal and may vary slightly in the number of strands and/or strand diameter